KR20060118796A - Vacuum cleaner - Google Patents

Abstract

A vacuum cleaner is provided to improve filtering efficiency by doubly filtrating foreign matters in the air with cyclone method, and to enhance the appearance of the vacuum cleaner by restricting a dust collecting handle from being protruded up. A vacuum cleaner includes a body(100) embedding parts, a dust collecting unit installed in the body to doubly filtrate foreign matters from air and detachably combined with an upper part of the body, a motor assembly(140) installed in the body to generate rotational power by receiving power, a cord reel assembly installed at a side of the motor assembly to wind and store a power cord, and a suction nozzle spaced from the body and moved in the proximity of a floor to guide suction of air and foreign maters. An upper part of the dust collecting unit is arranged in a line with an upper part of the body. The dust collecting unit has a dust collecting bin for filtering foreign matters in the air and storing foreign matters, an upper cover for closing an upper part of the dust collecting bin, and a lower cover for closing a lower part of the dust collecting bin.

Description

Vacuum cleaner {Vacuum cleaner}

1 is a perspective view of a vacuum cleaner according to the prior art.

Figure 2 is a perspective view of a vacuum cleaner dust collecting unit according to the prior art.

Figure 3 is a perspective view showing the configuration of a preferred embodiment of a vacuum cleaner according to the present invention.

4A is a side view of a body that constitutes an embodiment of the present invention.

Figure 4b is an exploded perspective view of the body constituting the embodiment of the present invention.

Figure 5a is an exploded perspective view of the dust collecting unit constituting an embodiment of the present invention.

5B is a rear view of the dust collecting unit of the embodiment of the present invention.

Figure 6 is a cross-sectional view of the dust collecting unit top cover constituting an embodiment of the present invention.

7 is a sectional view of a dust collecting unit constituting an embodiment of the present invention.

8 is a sectional view of a main body constituting an embodiment of the present invention;

9 is a cross-sectional view showing a state in which a user grips the dust collecting unit constituting an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

50. Suction nozzle body 60. Extension tube

70. Hose 80. Handle

90. Connector 100. Body

110. Cover assembly 112. Moving handle

114. Dust collecting seat 116. Wheel guide

118. Exhaust Assembly 120. Base Assembly

130. Wheels 140. Motor Assembly

150. Code reel assembly 200. Dust collection unit

210. Dust collector 220. Top cover

230. Lower cover 240. First cyclone device

250. Second cyclone unit 260. Cover button

270. Assembly space 280. Connection piping

The present invention relates to a vacuum cleaner, and more particularly to a vacuum cleaner in which the upper surface of the dust collecting unit is located on the same plane as the upper surface of the main body.

 1 shows a configuration of a general vacuum cleaner. As shown, the vacuum cleaner includes a main body 1 having suction means for sucking air in the room, and a suction nozzle 2 into which air on the bottom surface is introduced by suction force generated in the main body 1. Has a configuration to include.

On the other hand, the main body 1, the lower body (5) to which the suction means is received and fastened, and the parts embedded in the lower body 5 so as not to be exposed to the outside, the electric part for controlling the vacuum cleaner (not shown) It consists of an upper body (6) is built.

A moving handle 6 'is further provided on the upper surface of the upper body 6. The movable handle 6 ′ is for facilitating the grip of the user when the cleaner moves, and protrudes upward from the upper surface of the upper body 6.

In addition, wheels 8 are fastened to both sides of the main body 1 so that the main body 1 can smoothly move the bottom surface, and the wheels 8 are separated from the air sucked through the suction nozzle 2. A discharge portion 8a through which air of the air is discharged from the main body 1 is constituted.

Between the main body 1 and the suction nozzle 2, a suction hose 3b made of a flexible material, an operation unit 82 connected to an end of the suction hose 3b, and the operation unit 82 ) And an extension tube 3a for connecting the suction nozzle 2 are sequentially installed, so that the suction force generated in the main body 1 can be transmitted to the suction nozzle 2.

 Therefore, when electricity is applied through the power cord 9 connected to the electric part (not shown) built in the main body 1, the vacuum cleaner is in a standby state. At this time, when the user adjusts the suction step by using the button of the operation unit 82, a suction force suitable for each step is generated by the suction means built in the main body (1).

The suction force generated through the suction means is transmitted to the suction nozzle 2 via the suction hose 3b and the extension pipe 3a which are fastened to the suction connector 3c. The air containing the foreign matter such as dust or lint is sucked by the suction force transmitted to the suction nozzle 2, the foreign matter in the sucked air is separated by the dust collecting unit 10, and the filtered air is discharged. Cleaning is performed by the process of being discharged to the outside of the main body 1 through the portion (8a).

2 shows a dust collecting unit 10 in a state in which a conventional dust filter 14 is fastened. On one side, the air introduced into the main body 1 through the suction connection part 3c has an inner wall of the dust collecting unit 10. The suction plate 12 is formed by causing the cyclone to flow in a tangential direction, and the separator 13 is formed with a hole 13a formed therein so that a large amount of dust introduced through the suction guide 12 can be separated. 13 is assembled, and the other outer wall of the suction guide 12 is provided with a handle 15 to facilitate attachment and detachment from the main body 1.

The upper cover 11 configured to open and close the upper part of the dust collecting unit 10 has a discharge port 11a formed at the center thereof, and a dust filter 14 is fastened to the bottom edge of the discharge port 11a.

The filter body 14b of the dust filter 14 has a cylindrical shape in which pleats in the longitudinal direction are repeated in the circumferential direction. In addition, the lower fixing part 14a edge which fixes and supports the bottom of the filter main body 14b protrudes a predetermined portion upward to surround the bottom of the filter main body 14b.

The filter main body 14b of the dust filter 14 is preferably formed of a material having a certain strength or more, and taking shape when washing, in consideration of the strong flow of air. For example, it can also be comprised by the polyester material which can be utilized as a fiber material.

In addition, the upper fixing part (not shown) and the lower fixing part 14a for fixing and supporting the upper part and the lower part of the filter main body 14b are also configured so that the filter main body 14b can maintain a cylindrical shape and can be washed. It can also comprise a synthetic resin material.

Since the filter main body 14b is able to widen the contact surface area with the flowing air by forming a plurality of pleats in the longitudinal direction, the dust collecting efficiency is maximized. That is, it is filtered by the filter main body 14b so that fine foreign matter is not included in the air discharged through the discharge port 11a.

If fine foreign matters are accumulated on the surface of the filter body 14b of the dust filter 14 through this process, the flow of air is not smoothly performed. Therefore, the foreign matter on the surface of the dust filter 14 should be brushed off or washed.

 However, in the conventional vacuum cleaner configured as described above, since foreign matters in the air are filtered only once by the dust filter 14, there is a problem that the air purification ability is low.

In addition, since the movable handle 6 'is protruded upward on the upper surface of the upper body 6, there is a problem that the appearance is not beautiful.

An object of the present invention for solving the conventional problems as described above is to provide a vacuum cleaner in which foreign matter in the air is filtered twice.

Another object of the present invention is to provide a vacuum cleaner in which the upper surface of the dust collecting unit does not protrude outward from the outer circumferential surface of the main body.

Vacuum cleaner of the present invention for achieving the above object, the main body and a plurality of parts are built; A dust collecting unit installed in the main body to filter foreign matter in the air by cyclone flow, and to be easily detachable from above / above of the main body; A motor assembly installed at the main body to generate rotational power with power applied from the outside; A cord reel assembly installed at one side of the motor assembly and having a power cord wound around the motor assembly; A suction nozzle body for guiding suction of air and foreign materials while moving in a state of being spaced apart from the main body and close to the bottom surface; The upper surface of the dust collecting unit is located on the same plane as the upper surface of the main body.

According to this invention comprised in this way, there exists an advantage that the foreign material filtering capability of a vacuum cleaner improves and appearance is beautiful.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 shows a perspective view of a preferred embodiment of the vacuum cleaner according to the invention.

As shown in the drawing, the vacuum cleaner according to the present invention is connected to one end of the suction nozzle body 50 and the suction nozzle body 50 for guiding the suction of air and foreign substances while moving in a state close to the bottom surface. And an extension tube 60 configured to be adjustable in length, connected to the extension tube 60, and a connecting hose 70 made of an elastic material to guide air and foreign substances introduced through the suction nozzle body 50; The main body 100 is connected to one end of the connection hose 70 and includes a plurality of parts.

In more detail, the suction nozzle body 50 and the main body 100 are spaced apart, and the extension tube 60 and the connection hose 70 are provided between the suction nozzle body 50 and the main body 100. It guides the flow of air and foreign objects.

The other end (rear end) of the extension pipe 60 is provided with an operation handle (80). The operation handle 80 is a part for the user to easily grip the cleaning operation, the front of the operation handle 80 is formed with an operation unit 82 to enable the user to operate the vacuum cleaner.

Therefore, the user can control the operation of the cleaner and the strength of the cleaner by manipulating the operation unit 82 while holding the operation handle 80 with one hand.

The connector 90 is further provided at a connection portion of the main body 100 and the connection hose 70. The connector 90 has a function of a connection terminal for allowing a user's operation signal input from the operation unit 82 to be applied to the main body 100, and air introduced through the connection hose 70. Simultaneously perform the guide to 100).

Therefore, although not shown, a plurality of electrical connection ends are further provided at the end of the connector 90, and the connector 90 may be provided with an operation unit (such as when the operation unit 82 is provided on the operation handle 80). 82 is provided in addition to the main body 100 and includes an electrical connection end.

That is, when the operation unit 82 is provided anywhere in the main body 100, the connector 90 is not provided with an electrical connection end, and is configured to perform only a function as an inflow passage of air.

4A and 4B schematically illustrate the structure of the main body 100. That is, a perspective view of the main body 100 is shown in FIG. 4A, and each configuration of the main body 100 is shown in an exploded perspective view in FIG. 4B.

As shown in these drawings, the main body 100 includes a cover assembly 110 forming an upper appearance, a base assembly 120 forming an lower appearance, and a dust collecting unit for filtering foreign substances in the air. 200) to form an overall appearance.

The upper surface of the cover assembly 110 is preferably formed to have a rounded curvature, the movement handle 112 is installed on the upper end of the cover assembly 110. The movement handle 112 is for facilitating the movement of the main body 100, and is configured to be rotatable about the distal end portion.

A dust collecting seat 114 is formed in the first half of the cover assembly 110. The inner surface of the dust collecting seat 114 is formed to have a shape corresponding to the outer surface of the dust collecting unit 200. Therefore, the dust collecting unit 200 is seated on the dust collecting seat 114.

At the front end of the cover assembly 110, a suction hole 114 'is formed through the front and rear. The suction guide 212 of the dust collecting unit 200, which will be described below, is inserted into the rear end of the suction hole 114 '. Therefore, air and foreign substances introduced through the suction nozzle body 50 and introduced into the main body 100 are guided to the dust collecting unit 200 through the suction hole 114 ′.

Wheel guides 116 are further formed at both ends of the cover assembly 110. The wheel guide 116 is a portion that shields the upper portion of the moving wheel 130 to be described below, and has a semi-circular shape protruding upward to correspond to the upper half of the moving wheel 130 as shown.

The exhaust assembly 118 is further provided at the rear end of the cover assembly 110. The exhaust assembly 118 is a portion through which the filtered air is exhausted to the outside of the main body 100 while passing through the dust collecting unit 200. The exhaust assembly 118 includes an exhaust filter for purifying the exhaust air. Not included).

The base assembly 120 has a shape corresponding to the cover assembly 110 and is coupled to each other.

As shown in the base assembly 120, the motor housing 122 is formed in the second half, and the cord reel mounting part 124 is formed in the second half. The motor housing 122 is a part in which the motor assembly 140 to be described below is mounted, and the cord reel mounting part 124 is a part in which the cord reel assembly 150 to be described below is mounted.

Wheel supports 126 are formed at both ends of the rear half of the base assembly 120. The wheel support 126 is a portion supporting the moving wheel 130 to be described below.

Moving wheels 130 are installed at both sides of the rear half of the base assembly 120, that is, the wheel support 126. The moving wheel 130 is to facilitate the movement of the main body 100. In other words, the main body 100 to easily move the bottom surface during the cleaning operation.

On the other hand, the auxiliary wheel 132 is further installed in the central portion of the front end portion of the base assembly 120. The auxiliary wheel 132 is preferably installed to be rotatable. As such, the auxiliary wheel 132 is configured to be rotatable in order to facilitate the change of direction during the movement of the main body 100.

The motor housing 122 has a cylindrical shape corresponding to the outer shape of the motor assembly 140 to be described below to guide the air discharged from the motor assembly 140. The motor assembly 140 discharges air to the motor assembly 140. It is preferable that a plurality of guiding discharge holes (not shown) are formed.

The motor assembly 140 is seated in the motor housing 122. The motor assembly 140 is a device for generating a rotational power with power applied from the outside. Therefore, a suction force for sucking air and foreign substances by the rotational power is formed.

To this end, a rotating fan is provided inside the motor assembly 140 to force the flow of air. That is, although not shown, a fan is built in the head (top) of the motor assembly 140.

The cord reel mounting unit 124 is provided with a cord reel assembly 150. The code reel assembly 150 is installed on the left side of the motor assembly 140. In more detail, the cord reel assembly 150 is installed in a form standing on the rear half of the main body 100. That is, it is installed in an upright state.

The code reel assembly 150 is a portion that winds and stores a power cord (not shown) for guiding power supplied from the outside. The construction and operation of the code reel assembly 150 are generally known, and thus, detailed herein. Description is omitted.

The dust collecting unit 114 has a dust collecting unit 200 is installed. The dust collecting unit 200 is installed to be easily removable from above / above the main body 100, and is configured to dually filter foreign matter in the air by cyclone flow.

The dust collecting unit 200, a dust collecting container 210 for filtering foreign matter in the air and storing the filtered foreign material, an upper cover 220 for shielding the upper surface of the dust collecting container 210, and the dust collecting container ( A rough appearance is formed by a lower cover 230 that shields the lower surface of the 210.

5A to 7 illustrate the configuration of the dust collecting unit 200. That is, an exploded perspective view and a rear view of the dust collecting unit 200 are shown in FIGS. 5A and 5B, respectively, and in FIG. 6, a cross section of the upper cover 220 of the dust collecting unit 400 is shown, and in FIG. The internal configuration of the unit 200 is shown in a side cross sectional view.

As shown in these figures, the lower half of the dust collecting container 210 is formed in a cylindrical shape, the upper half of the small cyclone 252 to be described below forms an appearance. That is, the lower half of the dust collecting container 210 is configured with a single cylindrical outer surface, and the upper half has a configuration in which the outer surfaces of the plurality of small cyclones 252 having a small cylindrical shape are exposed to the outside.

The dust collecting container 210 is formed such that the suction guide 212 penetrates inside and outside. As shown, the suction guide 212 is formed so that the outer end of the suction guide 212 protrudes to the outside of the dust collecting container 210, and the inner end of the suction guide 212 communicates with the inside of the guide tube 242 to be described below.

More specifically, the suction guide 212 is preferably formed in a tangential direction to the guide cylinder 242 to be described below. That is, the suction guide 212 is formed to have a predetermined angle with the guide cylinder 242. Therefore, the air flowing into the guide cylinder 242 through the suction guide 212 is pivoted along the inner surface of the guide cylinder 242.

The first cyclone device 240 and the second cyclone device 250 are provided in the dust collecting container 210.

The first cyclone device 240 is a device that primarily filters foreign matter in the air introduced into the dust collecting container 210, and has a guide cylinder 242 having a smaller diameter than the dust collecting container 210 and the And a filter assembly 244 installed inside the guide cylinder 242.

The guide cylinder 242 is installed inside the dust collector 210 and has a cylindrical shape. The filter assembly 244 includes a filter 244a for filtering foreign substances in the air, a skirt 244b provided at a lower end of the filter 244a, and a flow prevention formed at a lower portion of the skirt 244b. Plate 244c or the like.

The filter 244a has a conical shape that gradually decreases in diameter toward the lower side, and a plurality of air holes 244a 'are formed through the filter 244a. The air hole 244a 'is preferably formed in a small size. Therefore, foreign matter in a relatively large air cannot pass through the air hole 244a '.

The skirt 244b is formed of a disc, and more specifically, has a skirt shape in which the diameter gradually increases toward the lower side. The outer diameter of the skirt 244b is smaller than the inner diameter of the guide cylinder 242.

Therefore, foreign matter that does not pass through the filter 244a and falls to the lower side is accumulated by falling into the first dust collecting part 248 disposed below the skirt 244b through a gap between the skirt 244b and the guide tube 242. .

The flow preventing plate 244c is provided in plural under the skirt 244b. The flow preventing plate 244c is formed in a plurality of radially, and serves to block the scattering of foreign matter accumulated in the first dust collector 248. That is, the air flowing through the suction guide 212 is spirally turned, if the flow of air continues to the lower portion of the skirt 244b, foreign matter accumulated in the first dust collecting part 248 is scattered again. There is a problem to move up the skirt (244b). Therefore, the flow preventing plate 244c serves to block the air flow so that the rotational flow of air does not occur below the skirt 244b.

A guide passage 246 is further formed on the filter 244a to guide air and foreign substances introduced into the filter 244a and guided upward to the second cyclone apparatus 250.

The second cyclone apparatus 250 includes a small cyclone 252 for guiding the spiral flow of air and a guide tube 254 positioned inside the small cyclone 252 to guide the up and down flow of air.

The small cyclone 252 is formed around the first cyclone device 240, more specifically, a plurality of radially on the outside of the guide cylinder 242. The small cyclone 252 is formed in a cylindrical shape, the lower end portion is made of a funnel shape that gradually decreases in diameter toward the lower side.

On the other hand, the upper end of the small cyclone 252 is configured so that one side is opened so that the small cyclone 252 and the guide passage 246 communicate with each other. In addition, the guide part 252a is further extended to the outside of the opening of the small cyclone 252 to guide the air and foreign substances introduced into the small cyclone 252 to turn along the inner surface of the small cyclone 252. .

A second dust collecting part 256 is formed below the small cyclone 252. More specifically, a lower wall 258 having a predetermined diameter is further formed at a lower end of the dust collecting container 210 to partition the inside of the dust collecting container 210. The blocking wall 258 has a size smaller than the bottom diameter of the dust collecting container 210, while having a size larger than the diameter of the guide cylinder 242.

And the upper end of the blocking wall 258 is integrally connected with the lower inner portion of the small cyclone 252. Therefore, the inner and outer sides of the blocking wall 258 are separated from each other as shown in FIG. 7, and the first dust collecting part (2) in which foreign substances filtered by the first cyclone device 240 are accumulated inside the blocking wall 258 ( 248 is formed, and a second dust collecting part 256 is formed on the outside of the blocking wall 258, the foreign matter filtered by the second cyclone device 250 is accumulated.

The guide tube 254 is formed to protrude downward from the bottom of the upper cover 220, and is located inside the upper end of the small cyclone 252. The guide tube 254 is formed to have a size smaller than the upper diameter of the small cyclone 252, to guide the air orbiting the inside of the small cyclone 252 upwards.

In more detail, the air and foreign matter introduced into the small cyclone 252 is moved downward while turning along the inner surface of the small cyclone 252. And the flow of air is gradually increasing the revolution speed at the lower end of the small cyclone 252 of the funnel shape.

Therefore, when air descends while turning along the inner surface of the small cyclone 252, an upward airflow is formed in the center portion. This is similar to the principle that occurs in the eye of a typhoon. That is, when the tornado is formed on the outside, the airflow in the opposite direction is formed on the inside. As such, the upward air flow formed at the central portion of the small cyclone 252 is caused to flow upward by the guide tube 254.

As shown in FIG. 5A, the guide hole 254 ′ is vertically penetrated through the upper surface of the dust collecting container 210. In more detail, the guide hole 254 ′ is a hole formed above the filter 244a and serves as a passage through which air introduced into the filter 244a moves upward.

Meanwhile, a cover button 260 is provided at the rear lower portion of the dust collecting container 210. The cover button 260 is selectively engaged with the hook hook 232 of the lower cover 230 to be described below to control the opening and closing of the lower cover 230.

The lower cover 230 is made of a disc of a shape corresponding to the lower end of the dust collecting container 210, the hook hook 232 is formed at the rear end and the cover hinge 234 is provided at the front end.

The cover hinge 234 serves as a pivot center of the bottom cover 230, and the hook hook 232 serves to fix a rear end of the bottom cover 230. That is, the cover hinge 234 is rotatably installed at the lower end of the dust collecting container 210, the hook hook 232 is fastened to the cover button 260.

In this case, the lower cover 230 is fixed to the lower end of the dust collecting container (210). Therefore, the bottom of the first cover 248 and the second dust collecting unit 256 is shielded at the same time by the cover 230.

The upper cover 220 serves to guide the air passing through the second dust collecting device to the outside of the dust collecting unit 200 while shielding the upper surface of the dust collecting container 210. The discharge passage 222 is formed inside. That is, a predetermined space is formed between the bottom surface and the top surface of the top cover 220 to form the discharge passage 222.

A discharge port 224 is formed at the tip of the top cover 220. The discharge port 224 is a portion in which the air filtered by the foreign matter is discharged from the dust collecting unit 200, and is formed to protrude to the rear portion from the upper cover 220. The discharge port 224 is configured to communicate with the discharge passage 222.

A dust collecting handle 226 is further formed on the top cover 220. The dust collecting handle 226 is to allow the user to easily grip the dust collecting unit 200, and is formed to protrude a predetermined portion to the upper side of the upper cover 220, it is formed in the front and rear direction.

Elastic pieces 228 are formed at both sides of the dust collecting handle 226. The elastic piece 228 is formed to have the same curvature as the upper surface of the main body 100, it is installed rotatably. Therefore, hinge shafts 228 'are formed at one end of the elastic piece 228, that is, at the left and right side end portions of the upper cover 220, and an elastic spring is formed below the elastic piece 228. 228 "is provided.

The hinge shaft 228 ′ serves as a pivotal central axis of the elastic piece 228, and the elastic spring 228 ″ provides an elastic force to move the elastic piece 228 downward and then to return to its original position. Therefore, when an external force is applied from the upper side to the lower side of the elastic piece 228, the elastic piece 228 rotates about the hinge shaft 228 'and descends to the lower side.

And the elastic piece 228 is in a state as shown in FIG. 6 when no external force is applied. Therefore, the upper surface of the elastic piece 228 and the main body 100 is located on the same plane. That is, since the elastic piece 228 is formed to have a curvature corresponding to the upper surface of the main body 100, the upper surface of the dust collecting unit 400 as a whole does not protrude to the outer surface of the main body 100, the main body ( The upper surface of 100) is located on the same plane.

Meanwhile, as shown in FIG. 7, a predetermined space is formed between the bottom of the upper cover 220 and the upper surface of the dust collecting container 210 to form an assembly space 270. Accordingly, the air flowing upward through the respective guide tubes 254 is collected in the assembly space 270, and the air flows into the discharge passage 222 of the upper cover 220.

Air leaving the dust collecting unit 200 through the discharge port 224 is introduced into the motor assembly 140.

Hereinafter, the operation of the vacuum cleaner having the above configuration will be described.

First, a state in which the air and the foreign substance of the air is sucked and purified in the vacuum cleaner having the above configuration will be described with reference to FIGS. 3 to 8.

When the user operates the operation unit 82, the operation of the motor assembly 140 is started to generate a suction force in the vacuum cleaner. Therefore, the suction force allows the outside air and foreign matter to be sucked through the suction nozzle body 50.

Air and foreign matter sucked through the suction nozzle body 50 are introduced into the main body 100 through the extension pipe 60 and the connection hose 70. The air introduced into the main body 100 enters into the dust collecting unit 200 through the suction guide 212.

Air and foreign matter introduced into the dust collection unit 200 is rotated along the inner surface of the guide cylinder 242, and the turning air passes through the air hole 244a 'of the filter 244a to filter 244a. Flows inside. At this time, a large foreign material that does not pass through the air hole 244a 'of the filter 244a falls under the skirt 244b and accumulates in the first dust collecting part 248.

Of course, the air introduced into the dust collecting unit 200 moves in a concentric manner under the skirt 244b, and rotation is blocked by the flow preventing plate 244c. Then, it moves upwards to the skirt 244b and passes through the filter 244a. At this time, the foreign material that is relatively heavy will move to the lower portion of the skirt 244b and will not be able to flow back to the upper portion of the skirt 244b and will be accumulated in the first dust collector 248.

Air and fine foreign matter introduced into the filter 244a are radially dispersed in the guide passage 246 and introduced into each of the small cyclones 252. In this case, the air flowing into the small cyclone 252 is guided by the guide part 252a formed at the upper end of the small cyclone 252 and is rotated in a spiral direction.

Therefore, the air and the fine foreign matter is lowered while turning inside the small cyclone 252, the speed of the air is gradually increased down to the lower end of the small cyclone 252.

At this time, as air descends while turning along the inner surface of the small cyclone 252, an upward airflow is formed at the center of the small cyclone 252. This is similar to the air currents formed in the eye of a typhoon. Therefore, the upward airflow is guided by the plurality of guide pipes 254 to flow above the dust collecting container 210 to be collected in the assembly space 270.

In this process, the fine foreign matter turning with the air in the small cyclone 252 is ejected to the lower side of the small cyclone 252 without being caught in the upward air flow by inertial or centrifugal force. Therefore, these fine foreign matter is accumulated in the second dust collecting unit (256).

Meanwhile, the air collected in the assembly space 270 is introduced into the upper cover 220 and discharged through the discharge port 224 through the discharge passage 222.

On the other hand, since the connection pipe 280 is formed between the discharge port 224 and the motor assembly 140, the purified air exiting the dust collection unit 200 is as shown in Figure 9 along the connection pipe 280 It flows into the head of the motor assembly 140.

 The air introduced into the head of the motor assembly 140 is discharged to the outside from the lower half of the motor assembly 140 and passes through the discharge hole (not shown) of the motor housing 122 to the exhaust assembly 118. Flows into.

The air introduced into the exhaust assembly 118 is purified again by passing through an exhaust filter (not shown) and discharged to the outside of the main body 100 of the vacuum cleaner. This process completes the filtering of the foreign material.

When foreign matters are accumulated on the first dust collecting part 248 and the second dust collecting part 256 by the above process, the foreign material is removed by opening the lower cover 230.

In more detail, when the cover button 260 is pressed, the hook hook 232 of the bottom cover 230 is removed from the cover button 260. In this case, the lower cover 230 is opened by rotating the cover hinge 234 downward to the axis, wherein foreign matters collected in the first dust collector 248 and the second dust collector 256 are simultaneously downward. It is dropped and removed.

Next, a state in which the dust collecting unit 400 is gripped will be described with reference to FIGS. 6 to 9.

First, in the state as shown in FIG. 6, the dust collecting unit 400 is taken out of the main body 100. For this purpose, the user holds the dust collecting handle 226 with the hand H as shown in FIG. 9. At this time, the elastic piece 228 is pushed down.

More specifically, when a human finger pushes the elastic piece 228 downward, the elastic piece 228 is rotated about the hinge axis 228 ', so that the dust collecting handle 226 is moved outward. Exposed.

Therefore, the user grasps the dust collecting handle 226 with the hand H and lifts upwards. In this case, the dust collecting unit 400 is separated from the main body 100.

On the contrary, when the hand H holding the dust collecting handle 226 of the dust collecting unit 400 is released, the elastic piece 228 is returned to its original position by the force of the elastic spring 228 ". It rotates again about the axis 228 ', and returns to original position as shown in FIG.

The scope of the present invention is not limited to the above-exemplified embodiments, and many other modifications based on the present invention will be possible to those skilled in the art within the above technical scope.

In the vacuum cleaner according to the present invention as described above, foreign matter in the air sucked from the outside is double filtered by the cyclone flow. Therefore, there is an advantage that the air purification capacity (foreign material filtering ability) of the vacuum cleaner is improved.

In the present invention, the upper surface of the dust collecting unit and the upper surface of the main body are configured to be located on the same plane. Therefore, there is an advantage that the appearance of the vacuum cleaner is beautiful. That is, since the dust collecting handle of the dust collecting unit does not protrude to the upper side of the main body, the appearance of the vacuum cleaner main body is beautiful.

Claims (5)

A main body 100 in which a plurality of parts are embedded; A dust collecting unit (400) installed in the main body (100) to filter foreign matter in the air by cyclone flow, and to be easily detachable from above / above the main body (100); A motor assembly 140 installed at the main body 100 to generate rotational power with power applied from the outside; A cord reel assembly 150 installed at one side of the motor assembly 140 and having a power cord wound around the motor assembly 140; A suction nozzle body (50) for guiding suction of air and foreign substances while moving in a state of being spaced apart from the main body (100) and close to the bottom surface; The upper surface of the dust collecting unit 400 is vacuum cleaner, characterized in that located on the same plane as the upper surface of the main body (100). The method of claim 1, wherein the dust collecting unit 200, A dust collecting container 210 for filtering foreign substances in the air and storing the filtered foreign substances; An upper cover 220 for shielding an upper surface of the dust collecting container 210; And a lower surface cover (230) for shielding the lower surface of the dust collecting container (210). According to claim 2, wherein the upper cover 220, the dust collecting handle 226 to facilitate the grip of the user is formed in the front and rear direction, both sides of the dust collecting handle 226 is rotatable elastic piece 228 Vacuum cleaner, characterized in that installed. 4. The hinge shaft 228 ', which is a pivot center, is formed at one end of the elastic piece 228, and an elastic spring 228 " having an elastic force is provided below the elastic piece 228. Vacuum cleaner characterized in. The vacuum cleaner according to claim 3 or 4, wherein the elastic piece (228) has a curvature corresponding to an outer surface of the main body (100).

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